They both have 24 hours prep time. Batman is on top of an apartment building and Gladiator is on the ground.
But he can find info which radiation affects him (which possibly is gamma one). If he has access to Kallark's old fights, then he will find a way to take him out.
Batman's prep doesn't shake Gladiator's confidence.
Which gladiator is this? Cosmic gladiator with strength powerful enough to destroy a planet or the daredevil villain?
Does it really matter? IIRC, street Gladiator was able to give Daredevil a hard time (been awhile since I read their fight) but against Batman with 24 hours of prep is it really fair? Does giving Bats 24 hours of prep against someone as powerful as Gladiator make a huge difference despite his weakness for a certain type of radiation?